let a = [
    {"key":"0001A710000000000TDP",
    "title":"HR自助预入职用户组",
    "refname":"HR自助预入职用户组",
    "refpk":"0001A710000000000TDP",
    "id":"0001A710000000000TDP",
    "name":"HR自助预入职用户组",
    "innercode":"N",
    "code":"hrzz_preentry_usergrp",
    "children":[
        {"key":"1001A7100000000001XQ",
        "title":"gbg",
        "refname":"gbg",
        "refpk":"1001A7100000000001XQ",
        "id":"1001A7100000000001XQ",
        "name":"gbg",
        "pid":"0001A710000000000TDP",
        "innercode":"Y",
        "code":"gbg","children":[]},
        {"key":"1001A710000000000343",
        "title":"gyb",
        "refname":"gyb",
        "refpk":"1001A710000000000343",
        "id":"1001A710000000000343","name":"gyb",
        "pid":"0001A710000000000TDP","innercode":"Y","code":"gyb","children":[]},
    ]}]
    